Audi Workshop Service and Repair Manuals

• Heat shield
• 10 Nm
• Exhaust manifold
• Gasket
• ◆ Renew
• Lock nut, 25 Nm
• ◆ Renew
• To front silencer
• Front exhaust pipe with catalytic converter
• Heat shield
• ◆ For catalytic converter
• Mounting
• ◆ Renew if damaged

• 25 Nm
• Connector
• ◆ Black, 4-pin
• ◆ For Lambda probe 1 before catalytic converter (G39) and Lambda probe heating (Z19)
• Lambda probe 1 before catalytic converter (G39)*, 50Nm
• ◆ Remove and install with Lambda probe open ring spanner set 3337
• ◆ Grease only the threads with "G 052 112 A3"; "G 052 112 A3" must not get into the slots on the probe body
• ◆ If sealing ring is leaking nip open and replace.
• ◆ Checking:

=> Repair group 24; Checking functions; Checking Lambda probe and Lambda control before catalytic converter

• Locating nut, 40 Nm
• ◆ Renew
• Securing screw
• Bracket
• ◆ For electric wiring